Spring-Back of Pre-Strained High Strength Steel Stripes

Abstract:

High strength steels are extensively used in industries like automotive or aviation due to their convenient strength-weight ratio. However, these materials have also a downside given the high strain hardening rate and reduced ductility. Therefore in order to achieve parts with a more complex geometry multiple steps forming is often necessary. Given the complex straining history that a material passes through, it is becoming very important to understand the influence that pre-straining has on the consequent forming processes. This paper aims to investigate the capability of predicting spring-back using appropriate material models.

• Periodical: Applied Mechanics and Materials (Volume 371)
• Pages: 333-337
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.371.333
• Online since: August 2013
• Authors: Bogdan Chirita
• Keywords: Advanced High Strength Steel (AHSS), Pre-Straining, Springback, U-Bending

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